- Rockport Healthcare Services
- Rockwell Healthcare LLC
- Rollins-Nelson
- Romark Laboratories
- Rosecliff Venture Partners
- Rosewood Care Centers
- Rosewood Rehabilitation & Nursing Center
- Rosie
- Rosie Connectivity Solutions
- Roth & Co.
- Royal Ambulance
- Royal Health Group
- RTI International
- Rubicon Founders
- Rudolph & Sletten